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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Practical Tools for Integration and Analysis in Materials Engineering
Presentation Title Application of Prolate Spheroid Stereology to Microtexture Regions in Ti-6Al-4V
Author(s) Jaylen James, Adam Pilchak, Sushant Jha, Raymundo Arroyave, Eric Payton
On-Site Speaker (Planned) Jaylen James
Abstract Scope The fatigue life of near-alpha titanium alloys in service is a function of dwell time and microstructure. Clusters of alpha phase with similar c-axis orientations, known as micro-textured regions (MTRs), provide a local environment which facilitates initiation and growth of sub-surface cracks. Models exist for prediction of fatigue crack growth rate taking into account both dwell time and microtextured region parameters such as size; however, to date only 2-dimensional measurements have been used as inputs to this inherently 3-dimensional problem. In the present work, the MTR regions are assumed to be in the shape of prolate spheroids and the major and minor axis lengths are measured in cross-section. Then, the 3D size and shape distributions are estimated using the expectation-maximization and the Cruz-Orive spheroid unfolding algorithm. The magnitude of uncertainty in the unfolding results and implications for 2D fatigue life models for Ti-6Al-4V will be discussed.
Proceedings Inclusion? Planned:
Keywords Modeling and Simulation, Mechanical Properties, Computational Materials Science & Engineering

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Fast Fourier Transform Based Crystal Plasticity Constitutive Model for Predicting Creep and Rupture Lifetime in Metallic Systems
A framework for closed-loop materials design using density functional theory
A method to reconstruct prior beta grain orientations from measured alpha-phase electron backscatter diffraction data
A Private Ledger Architecture Tailored for Secure Workflow Management in Additive Manufacturing Facilities
Accelerated tools for disordered-materials discovery
Application of Prolate Spheroid Stereology to Microtexture Regions in Ti-6Al-4V
Batch Reification Fusion Optimization (BAREFOOT) Framework
Calculation of first principles based thermodynamic and kinetic materials properties using CASM
Data Science and Informatics Tools for Accelerated Materials Innovation
Foundations and Applications of DAMASK
LAMMPS as a tool in materials modeling workflows
PRISMS-PF – A High Performance Phase-Field Modeling Framework to Simulate Microstructure Evolution
Prisms-plasticity: An Open-Source Crystal Plasticity Finite Element Software
The Materials Commons 2.0: A Collaboration Platform and Information Repository for the Global Materials Community
Tools for microstructural analysis using computer vision and machine learning

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